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Comment by samschooler | Hacker News Reader

I'd say its one level beyond. Since "+" is so widely used, as talked about in the article, its trivial to remove. However with a non-standard domain and inconsistent username its not as easy to remove. These are some of the formats I use, they all offer exactly what I need (uniqueness, hard to programmatically attach to another, and culpability):

lyft@account.example.com

liftcarshare@example.com

email@lyft.com.example.com

example.com@com.lyft.example.com

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I would personally go one level further.

Generate random email addresses so you can't easily guess what others I might have given out. Then keep track of the mapping.

A service like simplelogin.io makes this easy.

FastMail does something like this. Their Masked Emails are two random words plus a four digit number.

Been using this feature since they introduced it and can say that I'm very pleased with it so far in combination with it's 1password integration.

When creating an account somewhere, fastmail automatically generates a new email for the site via an API in one click.

Highly recommend.

What I usually do is servicename + 6 to 10 random numbers. This way I can see the intended recipient whilst avoiding people being able to check where I've signed up.

Why not use the numbers to encode the creation date?

You certainly could, though I don't particularly care about the creation date - additionally, this is something that I can do easily by hand.

E: Ah, I didn't see the schema one of the parent commenters suggested - your question makes a lot more sense now. I still don't really care about the creation date, though, but I do care about the email having a random component, since if someone were to figure out my naming schema, they could check whether I've signed up for any given service.

What about base58 encoding their company name.

Caesar cypher.

icloud and also fastmail do this for you

Great idea with the subdomain! May I ask how you do it? Also, one idea for you: how about using created20220621@company.example.com?

Fastmail allows for wildcat (J)IMAP addresses. It a *.example.com MAIL record in dns with a supported (J)IMAP server.

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